as he walks along the gorge's edge
Architect knew (and yes, the oath still felt applicable - who else would she be swearing by, her bloody self?) that Nia had always been an animated, affectionate person. Even when her fear had made her restrained, her laughter and characteristic motions found ways to jump out - usually, by asserting themselves before she'd a chance to stifle.
No one else on Aionios had abandoned himself so fully to his idiosyncrasies as one Cap'n Triton, terror of the Erythian Seas, so Nia often chose to soak her head with a stroll on the captain's arm, thinking of old friends and forgotten troubles.